#include <stdlib.h>
#include <unistd.h>
#include "wzj.h"


void delete_all_imgaes(const char* str)
{
    sleep(rand() % 10 + 1);
}


void copy_big_file()
{
    sleep(rand() % 10 + 1);
}


void sort()
{
    sleep(rand() % 10 + 1);
}